Winter–spring warming in the North Atlantic during the last 2000 years: evidence from southwest Iceland

Richter, Nora; Russell, James M.; Garfinkel, Johanna; Huang, Yongsong

doi:https://doi.org/10.5194/cp-17-1363-2021

Articles | Volume 17, issue 3

https://doi.org/10.5194/cp-17-1363-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-17-1363-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 3

Research article

|

22 Jun 2021

Research article |

| 22 Jun 2021

Winter–spring warming in the North Atlantic during the last 2000 years: evidence from southwest Iceland

Nora Richter, James M. Russell, Johanna Garfinkel, and Yongsong Huang

Data sets

Impacts of Norse settlement on terrestrial and aquatic ecosystems in Southwest Iceland (https://www.ncdc.noaa.gov/paleo/study/29992) N. Richter, J. M. Russell, J. Garfinkel, and Y. Huang https://doi.org/10.1007/s10933-020-00169-3

The ERA-Interim reanalysis: configuration and performance of the data assimilation system (https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim) D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. Hólm, L. Isaksen, P. Kållberg, M. Köhler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Thépaut, and F. Vitart https://doi.org/10.1002/qj.828

World Ocean Database 2018 T. P. Boyer, O. K. Baranova, C. Coleman, H. E. Garcia, A. Grodsky, R. A. Locarnini, A. V. Mishonov, T. D. O'Brien, C. R. Paver, J. R., Reagan, D. Seidov, I. V. Smolyar, K. Weathers, and M. M. Zweng, M. M. https://www.nodc.noaa.gov/OC5/WOD/pr_wod.html

The ERA-Interim reanalysis: configuration and performance of the data assimilation system (https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim) D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. Hólm, L. Isaksen, P. Kållberg, M. Köhler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Thépaut, and F. Vitart https://doi.org/10.1002/qj.828

Model code and software

A high-resolution multi-proxy lake record of Holocene environmental change in southern Iceland C. L. Blair, \'{A}. Geirsd\'{o}ttir, and G. H. Miller https://doi.org/10.1002/jqs.2780

PRYSM v2.0: A Proxy System Model for Lacustrine Archive S. G. Dee, J. M. Russell, C. Morrill, Z. Chen, and A. Neary https://doi.org/10.1029/2018PA003413

Short summary

We present a reconstruction of winter–spring temperatures developed using organic proxies preserved in well-dated lake sediments from southwest Iceland to assess seasonal temperature changes in the North Atlantic region over the last 2000 years. The gradual warming trend observed in our record is likely influenced by sea surface temperatures, which are sensitive to changes in ocean circulation and seasonal insolation, during the winter and spring season.